Special and General Relativity Forum

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Join in expert discussion on special and general relativity discussion. Relativity is the dependence of various physical phenomena on relative motion of the observer and the observed objects.
Graduate Is There a Relativistic Version of Hooke's Law for Materials?
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Undergrad Confirming Covariant Derivative in Hartle's Gravity
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Undergrad Separating Overlapping Event Horizons: Theory
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Undergrad Length Contraction & Mass Increase in GR | General Relativity
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High School Energy and Matter: General Relativity Explained
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Undergrad Can a Geometric Animation Help Visualize the Special Theory of Relativity?
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Graduate Difference Between Covariance and Diffeomorphism Invarience
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Undergrad 4-momentum of a massless particle
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Undergrad How to fill the stress energy tensor for multi body systems
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Undergrad Proving Effects of Stress-Energy Tensor on Curvature
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High School Special relativity equation question
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High School Black Hole Firewalls: Explaining to John K Clark
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High School Why Light Experienced a Doppler Shift?
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High School Black Holes: Rotating vs Non-Rotating
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Undergrad Can Spacetime Be Visualized in a 2D Universe Like Flatland?
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Undergrad Alcubierre Drive & Bending of Spacetime
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High School Gravity Production: Electrons, Atoms & Magnetic Fields
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High School Common Time: Explaining Einstein's Definition
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Undergrad Derivative of Lorentz factor and four-acceleration
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Undergrad Negative Mass and Hawking Radiation
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Undergrad Understanding Time Dilation and Velocity: Debunking Common Misconceptions
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High School Geodesic equation in Minkowski space clarification
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High School Can FTL Travel be Achieved With Mass of a Photon?
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High School I understand time a little better
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Undergrad Can Wormholes Be Stabilized Using Negative Energy Density?
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High School Solving Special Relativity Equation: Rail Car Thought Experiment
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Graduate Black Hole Orbit Inequality: Explained
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Graduate GR to Naive Physics: Is it Possible?
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Undergrad Twin Paradox & Bondi K-Calculus: Who's Younger?
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High School Why do clocks experience time dilation in special and general relativity?
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Undergrad Measuring Light Speed Anisotropy
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Undergrad Does a metric exist for this surface?
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High School A is slower than B, B is slower than A. Where did it go?
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High School Is Special Relativity Universally Accepted?
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Undergrad Why isn't the Roemer type experiment a one way measure of c?
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Undergrad Gravitational Waves vs Universe Expansion Rate
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Undergrad Confusion about Frame Dragging
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Undergrad Einstein's Elevator & Tidal Gravity
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Insights The Schwarzschild Metric: Part 3, A Newtonian Comparison - Comments
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Insights The Schwarzschild Metric: Part 2, The Photon Sphere - Comments
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Undergrad Einstein's Pursuit of Unified Theory: Motivation and Observations
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High School Is the Double-Slit Experiment Validating Special Relativity's Influence on Time?
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Undergrad Alice Observes Bob at Event Horizon: DarkLink's Question
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High School Light Propagation: Doubts Answered Here
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Undergrad Explaining Relativity within 3 minutes
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High School Young Student Wins $250K Explaining Relativity
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Undergrad Why Does ds^2 Equal 0 in Metrics?
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High School Is the association of QG with BH a fake
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High School Understanding the Flow of Time: Relativity and Perception Explained
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High School Order of events and cause and effect
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Graduate Kerr-Bolt Spacetime: Derivation & Resources
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Graduate Divergence of (covaraint) energymomentum tensor
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Insights The Schwarzschild Metric: Part 1, GPS Satellites - Comments
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Undergrad Does the "space twin" benefit from length contraction?
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Undergrad Embedding Curved Spacetime in Noncurved Spacetime
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High School How To Consistently Explain Electromagnetism With Relativity
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High School Can We Really Stop Gravity by Altering Spacetime?
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Undergrad What is the true nature of distance in the context of space and time?
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Graduate Why is all the mass of a BH in the singularity?
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Undergrad Velocity Relativity: Solving a Complex Problem
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Undergrad Measuring Speed in Relativity - Einstein's Work Explained
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Undergrad Atomic Oscillations & Redshift in Sun and Earth
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Undergrad General Relativity & Quantum Theory: Where's the Limit?
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High School Why is the general theory of relativity is so complicated
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High School Black Holes as Gateways to Parallel Universes?
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High School Michelson-Morley Exp: Laws of Reflection Explained
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Undergrad Requesting clarification about metric tensor
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Undergrad Proof that Galilean & Lorentz Ts form a group
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Undergrad Coordinate singularity at Schwarzschild radius
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Undergrad Can Black Holes Create a Path for Lovers to Meet?
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Graduate Lorentz-Einstein law of motion for a point particle
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High School Metric Tensor and The Minkowski metric
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High School Time Dilation & Length Contraction: Does Relativity Work for Mediums?
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Undergrad Testing GR to What Energy Level?
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Undergrad Weak Gravitational Field: Solving Einstein Field Eqs
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High School What is the physics of motion through space?
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Graduate Exploring the Stress-Energy Tensor of a Perfect Fluid
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Undergrad Can General Relativity Accommodate Spaces Without Killing Vectors?
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High School Time dilation and 2 identical clocks
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High School Pressure Vessel Length Contraction and Pressure Comparison in a Spaceship
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Graduate Geodesic Distance & Maximally Symmetric Spacetimes: Why Does it Matter?
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Undergrad Special Relativity: Kinetic Energy Expansion and Contradictions
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Undergrad Velocity addition and conservation of the energy
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High School What is a Clock? Syncing Technologies Explained
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Undergrad Speed of Light & Magnetic Field: Condensing Wave Speed?
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High School Why Isn't Work Equal to Einstein's E=mc²?
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Undergrad Why the speed of light is constant for every observer?
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Undergrad Getting Invariant Curvature from Momentum & Energy
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Undergrad Line Element in Minkowski Space: Geometric Meaning
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Graduate Correct coordinate transformation from Poincare-AdS##_3## to global AdS##_3##
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Undergrad Survival Time in Black Hole: Myth Debunked
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High School Why do photons allow Doppler shift
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Graduate Time dilation and simultaneity: easier to see with a train
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High School Why Do We Need Gravitons for Understanding Gravity?
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High School Life on a planet near a black hole
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Undergrad Geodesic Equation: Understanding Proper Time & x^α
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Undergrad Evaluating metric tensor in a primed coordinate system
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Undergrad Velocity difference not preserved in special relativity
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Undergrad Gravitational Waves Affecting EM Fields: Evidence & Implications
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Undergrad Time & Space Expansion: High Schooler Qs
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